JPH0423453B2 - - Google Patents

Info

Publication number
JPH0423453B2
JPH0423453B2 JP62248598A JP24859887A JPH0423453B2 JP H0423453 B2 JPH0423453 B2 JP H0423453B2 JP 62248598 A JP62248598 A JP 62248598A JP 24859887 A JP24859887 A JP 24859887A JP H0423453 B2 JPH0423453 B2 JP H0423453B2
Authority
JP
Japan
Prior art keywords
circuit
code
bit
timing signal
bits
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP62248598A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6490621A (en
Inventor
Toshiharu Yagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP62248598A priority Critical patent/JPS6490621A/ja
Priority to AU22874/88A priority patent/AU604627B2/en
Priority to CA000578779A priority patent/CA1289253C/en
Priority to DE3854292T priority patent/DE3854292T2/de
Priority to EP88116055A priority patent/EP0310057B1/de
Priority to US07/251,487 priority patent/US4918446A/en
Publication of JPS6490621A publication Critical patent/JPS6490621A/ja
Publication of JPH0423453B2 publication Critical patent/JPH0423453B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0067—Rate matching
    • H04L1/0068—Rate matching by puncturing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/33—Synchronisation based on error coding or decoding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Error Detection And Correction (AREA)
JP62248598A 1987-09-30 1987-09-30 Decoder Granted JPS6490621A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP62248598A JPS6490621A (en) 1987-09-30 1987-09-30 Decoder
AU22874/88A AU604627B2 (en) 1987-09-30 1988-09-27 Decoder with reduced synchronization capture time
CA000578779A CA1289253C (en) 1987-09-30 1988-09-29 Decoder with reduced synchronization capture time
DE3854292T DE3854292T2 (de) 1987-09-30 1988-09-29 Decoder.
EP88116055A EP0310057B1 (de) 1987-09-30 1988-09-29 Decoder
US07/251,487 US4918446A (en) 1987-09-30 1988-09-30 Decoder with reduced synchronization capture time

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62248598A JPS6490621A (en) 1987-09-30 1987-09-30 Decoder

Publications (2)

Publication Number Publication Date
JPS6490621A JPS6490621A (en) 1989-04-07
JPH0423453B2 true JPH0423453B2 (de) 1992-04-22

Family

ID=17180501

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62248598A Granted JPS6490621A (en) 1987-09-30 1987-09-30 Decoder

Country Status (6)

Country Link
US (1) US4918446A (de)
EP (1) EP0310057B1 (de)
JP (1) JPS6490621A (de)
AU (1) AU604627B2 (de)
CA (1) CA1289253C (de)
DE (1) DE3854292T2 (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5117427A (en) * 1988-03-03 1992-05-26 Mitsubishi Denki Kabushiki Kaisha Communication system with concatenated coding error correction
US5321705A (en) * 1990-11-21 1994-06-14 Motorola, Inc. Error detection system
US5379305A (en) * 1992-07-20 1995-01-03 Digital Equipment Corporation Error correction system with selectable error correction capabilities
JP2522142B2 (ja) * 1992-12-25 1996-08-07 日本電気株式会社 ビタビ復号器の同期検出方式
FR2700228B1 (fr) * 1993-01-06 1995-02-10 Alcatel Telspace Dispositif de calage de phase de chacun des paquets d'un signal numérique à modulation de phase, et récepteur correspondant.
JPH06334537A (ja) * 1993-05-21 1994-12-02 Fujitsu Ltd 不確定性除去機能付きシリアル／パラレル変換回路
JP2780612B2 (ja) * 1993-10-13 1998-07-30 富士通株式会社 磁気記録再生装置
FR2725098B1 (fr) * 1994-09-27 1996-11-22 Alcatel Telspace Dispositif de synchronisation de branches d'un decodeur de viterbi compris dans un recepteur de donnees numeriques codees en treillis multidimensionnel
US5710783A (en) * 1995-06-07 1998-01-20 Luthi; Daniel A. Optimization of synchronization control in concatenated decoders
US5712863A (en) * 1996-02-09 1998-01-27 Overland Data Inc Randomizing encoder for digital data storage
AU733663B2 (en) * 1996-02-09 2001-05-17 Overland Storage, Inc. Encoder for digital data storage
US6167550A (en) * 1996-02-09 2000-12-26 Overland Data, Inc. Write format for digital data storage
US5931968A (en) * 1996-02-09 1999-08-03 Overland Data, Inc. Digital data recording channel
US5815514A (en) * 1996-02-09 1998-09-29 Overland Data, Inc. Variable rate bit inserter for digital data storage
US6543024B2 (en) 1996-02-09 2003-04-01 Overland Storage, Inc. Write format for digital data storage
US5742622A (en) * 1996-03-12 1998-04-21 Discovision Associates Error detection and correction system for a stream of encoded data
US5812603A (en) * 1996-08-22 1998-09-22 Lsi Logic Corporation Digital receiver using a concatenated decoder with error and erasure correction
JPH10112144A (ja) * 1996-10-03 1998-04-28 Sony Corp 再生装置、誤り訂正装置及び誤り訂正方法
US5955977A (en) * 1997-03-31 1999-09-21 Sharp Laboratories Of America, Inc. System for avoiding start code emulation and long carry-over propagation
US5931966A (en) * 1997-05-19 1999-08-03 Carnegie Mellon University Viterbi detector with a pipelined look-up table of squared errors
US6009553A (en) * 1997-12-15 1999-12-28 The Whitaker Corporation Adaptive error correction for a communications link
US6597526B1 (en) 1998-08-14 2003-07-22 Overland Storage, Inc. Magnetic tape drive apparatus including a variable rate encoder
JP3878481B2 (ja) 1999-07-08 2007-02-07 サムスン エレクトロニクス カンパニー リミテッド 移動通信システムにおける伝送率整合のための逆多重化器及び多重化器の制御装置及び方法
US8156535B2 (en) * 2002-02-12 2012-04-10 Finsar Corporation Data rate compression device for cable television return path using bandpass puncturing
US7751718B2 (en) * 2002-02-12 2010-07-06 Finisar Corporation Efficient transmission of digital return path data in cable television return path
US7725036B2 (en) * 2002-02-12 2010-05-25 Finisar Corporation Efficient transmission of digital return path data in cable television return path
US7765576B2 (en) * 2004-05-12 2010-07-27 Finsiar Corporation Changing communication mode in a CATV pathway using mute commands
US8032916B2 (en) * 2004-05-12 2011-10-04 Finisar Corporation Single master clock control of Ethernet data transfer over both a cable TV return path and an Ethernet forward path
JP4491587B2 (ja) * 2004-11-26 2010-06-30 テクトロニクス・インターナショナル・セールス・ゲーエムベーハー データ発生装置
JP2006262394A (ja) * 2005-03-18 2006-09-28 Nec Corp 復号回路及び復号方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57155857A (en) * 1981-03-23 1982-09-27 Kokusai Denshin Denwa Co Ltd <Kdd> Maximum likelihood method and apparatus for error

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3872432A (en) * 1974-04-10 1975-03-18 Itt Synchronization circuit for a viterbi decoder
US4527279A (en) * 1982-07-12 1985-07-02 Kokusai Denshin Denwa Co. Synchronization circuit for a Viterbi decoder
JPS60177732A (ja) * 1984-02-23 1985-09-11 Fujitsu Ltd ビタビデコ−ダによる誤り検出方式
US4583078A (en) * 1984-11-13 1986-04-15 Communications Satellite Corporation Serial Viterbi decoder
ATE50429T1 (de) * 1985-06-14 1990-02-15 Philips Nv System zum uebertragen von worten, gesichert bei einer kombination eines blockcodes und eines rekurrenten kodes, uebertragungsgeraet zur verwendung in solchem system und empfaengergeraet zur verwendung in solchem system.
JPH0824270B2 (ja) * 1985-12-25 1996-03-06 日本電信電話株式会社 たたみ込み符号器および最尤復号器
JPS62193323A (ja) * 1986-02-19 1987-08-25 Sony Corp ヴイタビ復号装置
NL8603164A (nl) * 1986-12-12 1988-07-01 Optical Storage Int Werkwijze voor het overdragen van n-bit informatiewoorden, informatieoverdrachtsysteem voor het uitvoeren van de werkwijze, alsmede een kodeerinrichting en dekodeerinrichting voor toepassing in het informatieoverdrachtsysteem.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57155857A (en) * 1981-03-23 1982-09-27 Kokusai Denshin Denwa Co Ltd <Kdd> Maximum likelihood method and apparatus for error

Also Published As

Publication number Publication date
DE3854292T2 (de) 1996-01-11
AU604627B2 (en) 1990-12-20
US4918446A (en) 1990-04-17
CA1289253C (en) 1991-09-17
EP0310057A3 (en) 1990-08-29
EP0310057A2 (de) 1989-04-05
EP0310057B1 (de) 1995-08-09
JPS6490621A (en) 1989-04-07
AU2287488A (en) 1989-04-06
DE3854292D1 (de) 1995-09-14

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